All categories

4 years ago

What is a scalar? APEX

Physics

1 answer:

lianna [129]4 years ago

3 0

Answer:

C. A quantity that does not indicate direction.

Explanation:

There are two types of quantities in physics:

- Scalars: a scalar quantity is a quantity which has only a magnitude, and not a direction.

Examples of scalar quantities are: mass, temperature, time, distance, speed...

- Vectors: a vector quantity is a quantity having both a magnitude and a direction.

Examples of vector quantities are: velocity, displacement, force, acceleration...

Therefore, for the question in the problem:

<em>What is a scalar?</em>

The correct answer is:

C. A quantity that does not indicate direction.

You might be interested in

Which two changes would decrease the electric force between two charged

ch4aika [34]

Answer:

it is b and e

Explanation:

<h2>if u look at the words twice you will notice that b and e are both saying the same meanings just in diff rent words way u need to look close on things like that and u will get passing grades </h2>

6 0

2 years ago

What part of the brain is referred to as the seat to consciousness?

aleksley [76]

As kmoefgthdyfjkhyutgfrdescfgvh

8 0

4 years ago

Volcanic and other such activity at the mid-Atlantic ridge extrudes material to fill the gap between separating tectonic plates

Svetach [21]

Answer:

Explained

Explanation:

The magnetization of rocks is found to reverse in a coordinated manner with distance from the ridge.The fact that it implies about the Earth's magnetic field is that the Earth's magnetic Field is able to reverse with time. And if we know the rate of time for spreading we can find the rate of reversal.

3 0

4 years ago

A submarine is 58.8 m from a whale. The sub sends out a sonar ping to locate the whale. The speed of sound underwater is 1520 m/

MissTica

Answer:

0.08

Explanation:

this problem assume that both of whale and submarine are in rest position or in constant linier motion in same direction and same speed.

The sound will travel from Submarine to the whale and back again to submarine. so the time will be like this

t = 2d/v

t = 2*58.8/1520

t = 117.6/1520

t = 0.077368 s

t ≈ 0.08 s (less then 1 s)

6 0

4 years ago

Bonus: What is the velocity of an 8 kg lead shot-put if it has 484 J of energy? Type here to search e

Dima020 [189]

Answer:

11m/s

Explanation:

Given parameters:

Mass of the lead shot = 8kg

Energy of the shot = 484J

Unknown:

Velocity of the shot = ?

Solution:

To solve this problem, we apply the kinetic energy formula;

K.E = $\frac{1}{2}$ m v²

m is the mass

v is the unknown

Now, insert the parameters and solve;

484 = $\frac{1}{2}$ x 8 x v²

484 = 4v²

v² = 121

v = 11m/s

7 0

3 years ago